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Tomosa Sarkar
2025-07-28 13:56:49 +05:30
commit e9eb805edb
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176
hrmsEjb/net/sf/jasperreports/engine/util/JRStringUtil.java Normal file
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package net.sf.jasperreports.engine.util;
public class JRStringUtil {
public static String replaceCRwithLF(String text) {
if (text != null) {
int length = text.length();
char[] chars = text.toCharArray();
int r = 0;
boolean dirty = false;
for (int i = 0; i < length; i++) {
char ch = chars[i];
if (ch == '\r') {
dirty = true;
if (i + 1 < length && chars[i + 1] == '\n') {
r++;
} else {
chars[i - r] = '\n';
}
} else {
chars[i - r] = ch;
}
}
return dirty ? new String(chars, 0, length - r) : text;
}
return null;
}
public static String xmlEncode(String text) {
int length = text.length();
if (text != null && length > 0) {
StringBuffer ret = new StringBuffer(length * 12 / 10);
int last = 0;
for (int i = 0; i < length; i++) {
char c = text.charAt(i);
switch (c) {
case '&':
if (last < i)
ret.append(text.substring(last, i));
last = i + 1;
ret.append("&amp;");
break;
case '>':
if (last < i)
ret.append(text.substring(last, i));
last = i + 1;
ret.append("&gt;");
break;
case '<':
if (last < i)
ret.append(text.substring(last, i));
last = i + 1;
ret.append("&lt;");
break;
case '"':
if (last < i)
ret.append(text.substring(last, i));
last = i + 1;
ret.append("&quot;");
break;
case '\'':
if (last < i)
ret.append(text.substring(last, i));
last = i + 1;
ret.append("&apos;");
break;
}
}
if (last < length)
ret.append(text.substring(last));
return ret.toString();
}
return text;
}
public static String htmlEncode(String text) {
int length = text.length();
if (text != null && length > 0) {
StringBuffer ret = new StringBuffer(length * 12 / 10);
boolean isEncodeSpace = true;
int last = 0;
for (int i = 0; i < length; i++) {
char c = text.charAt(i);
switch (c) {
case ' ':
if (isEncodeSpace) {
if (last < i)
ret.append(text.substring(last, i));
last = i + 1;
ret.append("&nbsp;");
isEncodeSpace = false;
break;
}
isEncodeSpace = true;
break;
case '&':
if (last < i)
ret.append(text.substring(last, i));
last = i + 1;
ret.append("&amp;");
isEncodeSpace = false;
break;
case '>':
if (last < i)
ret.append(text.substring(last, i));
last = i + 1;
ret.append("&gt;");
isEncodeSpace = false;
break;
case '<':
if (last < i)
ret.append(text.substring(last, i));
last = i + 1;
ret.append("&lt;");
isEncodeSpace = false;
break;
case '"':
if (last < i)
ret.append(text.substring(last, i));
last = i + 1;
ret.append("&quot;");
isEncodeSpace = false;
break;
case '\n':
if (last < i)
ret.append(text.substring(last, i));
last = i + 1;
ret.append("<br/>");
isEncodeSpace = false;
break;
default:
isEncodeSpace = false;
break;
}
}
if (last < length)
ret.append(text.substring(last));
return ret.toString();
}
return text;
}
public static String getLiteral(String name) {
if (isValidLiteral(name))
return name;
StringBuffer buffer = new StringBuffer(name.length() + 5);
char[] literalChars = new char[name.length()];
name.getChars(0, literalChars.length, literalChars, 0);
for (int i = 0; i < literalChars.length; i++) {
if (i == 0 && !Character.isJavaIdentifierStart(literalChars[i])) {
buffer.append(literalChars[i]);
} else if (i != 0 && !Character.isJavaIdentifierPart(literalChars[i])) {
buffer.append(literalChars[i]);
} else {
buffer.append(literalChars[i]);
}
}
return buffer.toString();
}
private static boolean isValidLiteral(String literal) {
boolean result = true;
char[] literalChars = new char[literal.length()];
literal.getChars(0, literalChars.length, literalChars, 0);
for (int i = 0; i < literalChars.length; i++) {
if (i == 0 && !Character.isJavaIdentifierStart(literalChars[i])) {
result = false;
break;
}
if (i != 0 && !Character.isJavaIdentifierPart(literalChars[i])) {
result = false;
break;
}
}
return result;
}
}